The Pathogenic Microflora and Microbial Interactions in Oral Cavity in Dogs
Keywords:
antimicrobial capacities, bacteria, host, pathogenic factorsAbstract
The existing microorganisms in the oral cavity are not harmless and they can express various pathogenic factors. These pathogenic factors are represented by the morphostructural and functional characteristics that ensure germ aggression against the host. They are represented by a particular chemical structure of the germs, different morphological characteristics, or different functional properties caused by certain enzymes or toxic discharge.
The expression of pathogenicity of microorganisms is achieved when there is an imbalance that can affect the dynamics of the relations between macro and micro-organisms, the interaction of host antimicrobial capacities and pathogenic proprieties of microorganisms in favor of the latter.
Depending on their pathogenic proprieties these bacteria can be: pathogenic, moderately pathogenic, highly pathogenic.
The objective of this study is to reveal the pathogenic proprieties and the interactions of the oral cavity bacteria.
References
Tîrziu, E., Cumpǎnǎşoiu, C., Gros, R.V., Sereş, M., Bacteriologie specialǎ –practicum. Editura Waldpress, 2010 Timișoara.
Lamont R.J., Jenkinson H.F., Oral microbiology at a Glance. John Wiley & Sons, Ltd., Publication, 2010
Todar, K., The Microbial World - The Mechanisms of Bacterial Pathogenicity, 2009, http://textbookofbacteriology.net/pathogenesis.html
Fenno, J. C., LeBlanc, D. J., Fives-Taylor, P., Nucleotide sequence analysis of a type 1 fimbrial gene of Streptococcus sanguis FW213. Infect.Immun., 1989, 57, p. 3527-3533.
Ganeshkumar, N., Hannam, P. M., Kolenbrander, P.E., McBride, B.C., Nucleotide sequence of a gene coding for a saliva-binding protein (SsaB) from Streptococcus sanguis 12 and possible role of the protein in coaggregation with actinomyces. Infect. Immun., 1991, 59, p. 1093-1099.
Yiping, W. H., Akihiko, I., Chythanya, R., Hameem, I. K., Yun Z., Mei L., Hakimuddin, T. S., Robert, J. G., Howard, K. K., Cheri, X. D. Identification and Characterization of a Novel Adhesin Unique to Oral Fusobacteria. J Bacteriol; 2005, 187(15), p. 5330–5340.
Isogai, H., Kosako, Y., Benno, Y., Isogai, E. Ecology of genus Porphyromonas in canine periodontal disease, J. Vet. Med., 1999, 46, p. 467-473.
Fives-Taylor P., Meyer, D., Mintz, K. Virulence factors of the periodontopathogen Actinobacillus actinomycetemcomitans.J. Periodontol., 1996, 96, p. 291-297.
Holt, S.C., Kesavalu, L., Walker, S., Genco, C.A., Virulence factors of Porphyromonas gingivalis. Periodontol., 2000, 20, p. 168-238 (
Kolenbrander, P. E., London J., Adhere today, here tomorrow: oral bacterial adherence. J. Bacteriol., 1993, 175, p. 3247-3252.
Kolenbrander, P.E., Oral microbiol communities: Biofilms, interactions, and genetic systems. Annu Rev Microbiol., 2000, 54, p. 413-437.
Mayrand, D., Grenier, D., Bacterial interactions in periodontal diseases. Bulletin de l'Institut Pasteur , 1998, 96, 2, p. 125-133.
Shadaba A., Steven M. Opal, Bench-to-bedside review: Quorum sensing and the role of cell-to-cell communication during invasive bacterial infection, Critical Care, 2008, 12, 6, p. 236.
Bassler BL. Small talk. Cell-to-cell communication in bacteria. Cell. 2002;109:421–424. doi: 10.1016/S0092-8674(02)00749-3.
Kolenbrander, P.E., Andersen, R.N., Blehert, D.S., Egland, P.G., Foster, J.S., Palmer, R.J. Jr. (2002) - Communication among Oral Bacteria, Microbiology and Molecular Biology Reviews; Microbiol. Mol. Biol. Rev. vol. 66 (3), p. 486-505.
***Detection of Naturally Occurring Acyl- Homoserine Lactones Using a Chromobacterium Reporter Strain – http://www.cs.montana.edu/webworks/ projects/stevesbook/contents/chapters/chapter011/section024/blue/page002.html (accesat în 05.06.2011).
